3-Cyano-5-(difluoromethyl)-6-nitro-2-(trifluoromethoxy)pyridine
2-Cyano-5-methyl-6-(trifluoromethoxy)pyridine-3-sulfonamide
3-Cyano-4-(difluoromethyl)-6-nitro-2-(trifluoromethoxy)pyridine
4-Cyano-2-nitro-6-(trifluoromethoxy)pyridine-3-acetonitrile
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